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Tech Tips

Tracking Down Cooling Troubles Cooling troubles are almost always due to combustion gasses leaking into the coolant.  Be sure to check that first and repair the block, heads or gaskets as required.  If there are no gasses present in the coolant, check the radiator for the following: Internal cleanliness External air blockage Air passing around the radiator rather than through it Fan blade too far away or no shroud Consider using head gaskets that have water holes which route the coolant to the rear of the block before much is allowed to go into the head.  Restriction of the pump outlet water helps maintain positive pressure in the block, which helps prevent steam pockets.  Thermostats work well for this, or restrictors with approximately 9/16" diameter hole.

Flathead Torque Values; Ft-Lbs.: Head nuts on studs....................45-55 Main nuts on studs....................80 Rod nuts...................................45 Head bolts................................60-70 Main bolts................................100 Clutch cover, exc. B&B............18   Firing Order.......................1-5-4-8-6-3-7-2 Valve Clearance, Cold: Intake: 1932-48..........................0.012 1949-53..........................0.014 Exhaust: 1932-48..........................0.013 1949-53..........................0.018 Spark Plug Gap.............0.024 Cooling System Capacity.....16 -18 Quarts

Rodding Your Flaty There are lots of things you can do to your engine to increase horsepower and customize or personalize it's looks.  They all take time and cost money, and usually lots of both.  Try to be honest with yourself and know what you want to accomplish and how much money you want to spend.